What types of outdoor optical cables are there? Commonly used outdoor optical cables are divided into two structures: center bundle tube type and layer stranded optical cable:
① Center tube type optical cable: The center of the optical cable is a loose tube, and the reinforcing members are located around the loose tube. Optical cable structural types, such as the common GYXTW type optical cable, have a small number of cores, usually less than 12 cores.
GYXTW optical cable: Bundle tube: The material of the bundle tube is PBT. The material is hard yet flexible and resistant to lateral pressure.Some small factories use PP instead of PBT, which can reduce the cost by half. However, during transportation and construction of optical cables, the optical fibers inside are easily broken.
The color of PP is translucent.
Colored optical fiber: In order to distinguish each core optical fiber in communication engineering, a layer of colored plastic is squeezed onto the bare fiber.
Outdoor optical cables dye each core of bare fiber with different colors of ink. The colors of the inks are the same as indoor cables, and there are 12 kinds. The industry standard chromatographic arrangement of the Ministry of Information Industry is as follows: blue, orange, green , brown, gray, original (white), red, black, yellow, purple, pink, green.
It is allowed to use natural colors instead of white without affecting recognition.
